Overview

In GO string are UTF-8 encoded. strings package of GO provides a HasPrefix method that can be used to check if a string begins with a certain prefix

Below is the signature of the function

func HasPrefix(s, prefix string) bool

Let’s look at the working code

Code:

package main

import (
    "fmt"
    "strings"
)

func main() {
    //Input string contains the prefix
    res := strings.HasPrefix("abcdef", "ab")
    fmt.Println(res)

    //Input string doesn't contain the prefix
    res = strings.HasPrefix("abcdef", "ac")
    fmt.Println(res)
}

Output:

true
false